I cannot understand the antipathy towards trams of some of your correspondents (Letters passim).
They are an efficient and modern solution to mass transport for urban areas, which is one of the biggest problems facing our overcrowded towns and cities. Ask the people of Croydon or Nottingham, to name but two places, about their tram systems and I suspect the response will be overwhelmingly positive.
The trams are but one aspect of our nation's former transport system that we let go and are now rediscovering. I suspect the many former branch lines of railways will be next.
In the meantime the reintroduction of trams to more areas should be encouraged.
Paul Foster
Brighton
East Sussex
Nanogenerator consumes CO2 to generate electricity
Whoopee, they've solved how to keep a light on but not a lot else.